Mathematics – Logic
Scientific paper
Dec 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979jgr....84.7955w&link_type=abstract
Journal of Geophysical Research, vol. 84, Dec. 30, 1979, p. 7955-7959.
Mathematics
Logic
3
Mars Photographs, Mars Surface, Photogrammetry, Photomapping, Planetary Mapping, Topography, Mariner 9 Space Probe, Radar Imagery, Satellite-Borne Photography, Viking Lander 1, Viking Lander 2, Viking Orbiter 1
Scientific paper
Special photogrammetric techniques have been developed to portray Mars topography, using Mariner and Viking imaging and nonimaging topographic information and earth-based radar data. Topography is represented by the compilation of maps at three scales: global, intermediate, and very large scale. The global map is a synthesis of topographic information obtained from Mariner 9 and earth-based radar, compiled at a scale of 1:25,000,000 with a contour interval of 1 km; it gives a broad quantitative view of the planet. At intermediate scales, Viking Orbiter photographs of various resolutions are used to compile detailed contour maps of a broad spectrum of prominent geologic features; a contour interval as small as 20 m has been obtained from very high resolution orbital photography. Imagery from the Viking lander facsimile cameras permits construction of detailed, very large scale (1:10) topographic maps of the terrain surrounding the two landers; these maps have a contour interval of 1 cm. This paper presents several new detailed topographic maps of Mars.
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